Outstanding dissertations and theses are published in the series Forschungsergebnisse der WU Wien (WU Research Results). This series aims to inform the public about the economic and business research conducted at WU. The publication covers all aspects of the economic sciences, i.e. economics, financial policy, business administration, and economic statistics, demonstrating the wide diversity of research topics dealt with at WU. The series provides not only a wealth of information about current business and economic research and its problem-solving potential, but also an overview of WU's extensive research output.